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Finding the Fourth Proportional to 158,135.83, 218,360.42 and 112,952.41

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Solution

The fourth proportional to 158,135.83, 218,360.42 and 112,952.41 is: 155,969.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,135.83 : 218,360.42 = 112,952.41 : x
  2. Step 2: Convert to fraction form
    158,135.83/218,360.42 = 112,952.41/x
  3. Step 3: Cross multiply
    158,135.83x = 218,360.42 × 112,952.41
  4. Step 4: Simplify right side
    158,135.83x = 24,664,335,687.61
  5. Step 5: Solve for x
    x = 24,664,335,687.61/158,135.83
  6. Step 6: Final answer
    x = 155,969.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.